Abstract

A low band-gap copolymer PDTBTFV alternating bis-thienyl-(bis-alkoxy)-benzothiadiazole blocks with difluorovinylene units and its non-fluorinated counterpart PDTBTV have been synthesized and characterized as donor materials in bulk heterojunction (BHJ) solar cells with PCBM as the acceptor. The solar cells with the fluorinated polymer show better photovoltaic performances than those recorded with the non-fluorinated material. Comparative spectroscopic and computational studies, together with morphological, electrical and optical characterization of thin films, have been carried out to shed light on the reasons for the improvement of performances as induced by the double bond fluorination. Our study introduces the fluorinated double bond as a new conjugated unit in donor polymers for BHJ solar cells.

Autore Pugliese

• Losurdo Maria

Tutti gli autori

• A. Cardone; C. Martinelli; M. Losurdo; E. Dilonardo; G. Bruno; G. Scavia; S. Destri; P. Cosma; L. Salamandra; A. reale; A. Di Carlo; A. Aguirre; B. Milian-Medina; J. Gierschner; G.M. Farinola

Titolo volume/Rivista

Journal of Materials Chemistry A

Anno di pubblicazione

2013

ISSN

2050-7488

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile